Maintenance-free small hub shaft end structure

Abstract

A maintenance-free small hub shaft end structure comprises an axle, a hub, a brake disc and a flange piece, the end of the axle is sleeved with the hub, the hub is sleeved with the brake disc, the hub, the brake disc and the flange piece are sequentially arranged from inside to outside in the axle direction, and the hub, the brake disc and the flange piece are detachably connected; the end of the axle is sleeved with a bearing, the hub is sleeved on the bearing, one end of the hub is provided with a limiting edge, and the limiting edge abuts against the bearing towards the outer end of the axle. The hub and the flange piece are arranged in a split mode, the hub, the brake disc and the flange piece are sequentially arranged from inside to outside in the axle direction, the hub, the brake disc and the flange piece are detachably connected, when the brake disc is replaced, only the flange piece needs to be detached independently, then the brake disc is detached, the hub does not need to be detached, the hub cannot be affected, and the service life of the brake disc is prolonged. The maintenance-free period of the hub is guaranteed, assembly is convenient and fast, the production efficiency is effectively improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of axles, in particular to a maintenance-free small wheel hub axle end structure. Background Art

[0002] In the axle structure available on the market, the wheel hub and flange are integrated into one body, and the brake disc is installed on the axle through the flange. However, the maintenance cycle of the wheel hub is longer than that of the brake disc. When replacing the brake disc, the flange needs to be removed, resulting in the wheel hub being removed at the same time. Factors such as irregular operation and installation errors when reinstalling the wheel hub will directly affect the service life of the wheel hub. In addition, this structure is difficult to assemble and has high maintenance costs.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of the utility model is to provide a maintenance-free small hub shaft end structure with simple structure, long service life, convenient disassembly and assembly, low maintenance cost and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] A maintenance-free small wheel hub shaft end structure designed for this purpose includes an axle, a wheel hub and a brake disc, and is characterized in that it also includes a flange, the wheel hub is sleeved on the end of the axle, the brake disc is sleeved on the wheel hub, the wheel hub, the brake disc and the flange are arranged in sequence from the inside to the outside along the direction of the axle, and the wheel hub, the brake disc and the flange are detachably connected.

[0006] The end of the axle is sleeved with a bearing, the wheel hub is sleeved on the bearing, one end of the wheel hub is provided with a limiting edge, and the limiting edge is against the bearing toward the outer end of the axle.

[0007] The end of the axle is sleeved with a fastening element, and the bearing abuts against the fastening element toward the outer end of the axle.

[0008] The brake disc is provided with an accommodating cavity, and the wheel hub is at least partially inserted into the accommodating cavity.

[0009] A first positioning groove is provided at the bottom of the accommodating cavity, and a first positioning edge is provided at the other end of the hub, and the first positioning edge is positioned and inserted into the first positioning groove.

[0010] A second positioning edge is provided at the bottom of the accommodating cavity, and the second positioning edge is pressed between the wheel hub and the flange.

[0011] A second positioning groove is provided on the flange, and the second positioning edge is positioned and inserted into the second positioning groove.

[0012] The flange covers the outer side of the end of the axle.

[0013] The flange is provided with several annularly distributed first fixing holes, the brake disc is provided with several annularly distributed second fixing holes, and the wheel hub is provided with several annularly distributed third fixing holes. The fasteners pass through the first fixing holes and the second fixing holes in sequence and are fastened to the third fixing holes to connect the wheel hub, the brake disc and the flange.

[0014] The fastener is provided with an anti-loosening flange surface, and the anti-loosening flange surface and the fastener are forged into an integral body.

[0015] The utility model arranges the wheel hub and the flange separately, and the wheel hub, brake disc and flange are arranged in sequence from the inside to the outside along the axle direction, and the wheel hub, brake disc and flange are detachably connected. When replacing the brake disc, it is only necessary to remove the flange separately, and then remove the brake disc without removing the wheel hub, which will not affect the wheel hub, thereby ensuring the maintenance-free period of the wheel hub, and the assembly is convenient and quick, which effectively improves the maintenance efficiency and reduces the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the exploded structure of the shaft end structure in one embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the exploded structure of the shaft end structure in another aspect in one embodiment of the present invention.

[0018] Figure 3 This is a partial structural exploded view of the shaft end structure in one embodiment of the present invention.

[0019] Figure 4 This is a partial structural cross-sectional view of the shaft end structure in one embodiment of the present utility model.

[0020] Figure 5 Schematic diagram of the overall structure of the wheel hub in one embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the overall structure of the brake disc in one embodiment of the present utility model.

[0022] Figure 7 This is a schematic diagram of the overall structure of the flange in one embodiment of the present invention. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] See also Figure 1-Figure 7The maintenance-free small wheel hub shaft end structure includes an axle 1, a wheel hub 2, a brake disc 3 and a flange 4. The wheel hub 2 is mounted on the end of the axle 1, and the brake disc 3 is mounted on the wheel hub 2. The wheel hub 2, the brake disc 3 and the flange 4 are arranged from the inside to the outside along the direction of the axle 1, and the wheel hub 2, the brake disc 3 and the flange 4 are detachably connected; when disassembling, first remove the flange 4, then remove the brake disc 3, and finally remove the wheel hub 2. The installation process is the opposite of the disassembly process, but the principle is the same.

[0025] A bearing 5 is mounted on the end of the axle 1, and the wheel hub 2 is mounted on the bearing 5. A limiting edge 6 is provided at one end of the wheel hub 2, and the limiting edge 6 presses against the bearing 5 toward the outer end of the axle, thereby axially positioning the wheel hub 2 to prevent the wheel hub 2 from falling off the axle 1.

[0026] The end of the axle 1 is fitted with a fastening element 7, and the bearing 5 rests on the fastening element 7 toward the outer end of the axle. The fastening element 7 is a locking nut that can axially position the bearing 5 to prevent the bearing 5 from falling off the axle 1.

[0027] The brake disc 3 is provided with an accommodating cavity 8, and the wheel hub 2 is at least partially inserted into the accommodating cavity 8, so that the entire shaft end structure is more compact.

[0028] A first positioning groove 16 is provided at the bottom of the accommodating cavity 8 , and a first positioning edge 17 is provided at the other end of the wheel hub 2 . The first positioning edge 17 is positioned and inserted into the first positioning groove 16 to achieve mutual positioning between the wheel hub 2 and the brake disc 3 .

[0029] A second positioning edge 9 is provided at the bottom of the accommodating cavity 8 . The second positioning edge 9 is pressed between the wheel hub 2 and the flange 4 , so that the brake disc 3 is pressed between the wheel hub 2 and the flange 4 .

[0030] The flange 4 is provided with a second positioning groove 10 , and the second positioning edge 9 is positioned and inserted into the second positioning groove 10 to achieve mutual positioning between the flange 4 and the brake disc 3 ; the flange 4 is a flange disc.

[0031] The flange 4 covers the outer side of the end portion of the axle 1 .

[0032] The flange 4 is provided with a plurality of annularly distributed first fixing holes 11, the brake disc 3 is provided with a plurality of annularly distributed second fixing holes 12, and the wheel hub 2 is provided with a plurality of annularly distributed third fixing holes 13. The fasteners 14 (screws) pass through the first fixing holes 11 and the second fixing holes 12 in sequence and are fastened to the third fixing holes 13 to connect the wheel hub 2, the brake disc 3 and the flange 4, and then fix the brake disc 3 and the flange 4 to the end of the axle 1; the wheel hub 2, the brake disc 3 and the flange 4 are connected into one by the fasteners 14, and the assembly is convenient and quick, which effectively improves the production efficiency.

[0033] The fastener 14 is provided with an anti-loosening flange surface 15 , which is integrally forged with the fastener 14 .

[0034] The above is a preferred embodiment of the present invention, which illustrates and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A maintenance-free small wheel hub shaft end structure, comprising an axle (1), a wheel hub (2) and a brake disc (3), characterized in that: The invention also includes a flange (4), a wheel hub (2) is mounted on the end of the axle (1), and a brake disc (3) is mounted on the wheel hub (2). The wheel hub (2), the brake disc (3) and the flange (4) are arranged in sequence from the inside to the outside along the direction of the axle (1), and the wheel hub (2), the brake disc (3) and the flange (4) are detachably connected.

2. The maintenance-free small hub shaft end structure according to claim 1, characterized in that: The end of the axle (1) is sleeved with a bearing (5), the wheel hub (2) is sleeved on the bearing (5), and a limiting edge (6) is provided at one end of the wheel hub (2), and the limiting edge (6) abuts against the bearing (5) toward the outer end of the axle.

3. The maintenance-free small hub shaft end structure according to claim 2, characterized in that: The end of the axle (1) is sleeved with a fastening element (7), and the bearing (5) abuts against the fastening element (7) toward the outer end of the axle.

4. The maintenance-free small hub shaft end structure according to claim 2, characterized in that: The brake disc (3) is provided with an accommodating cavity (8), and the wheel hub (2) is at least partially inserted into the accommodating cavity (8).

5. The maintenance-free small hub shaft end structure according to claim 4, characterized in that: A first positioning groove (16) is provided at the bottom of the accommodating cavity (8), and a first positioning edge (17) is provided at the other end of the wheel hub (2), and the first positioning edge (17) is positioned and inserted into the first positioning groove (16).

6. The maintenance-free small hub shaft end structure according to claim 4, characterized in that: A second positioning edge (9) is provided at the bottom of the accommodating cavity (8), and the second positioning edge (9) is pressed between the wheel hub (2) and the flange (4).

7. The maintenance-free small hub shaft end structure according to claim 6, characterized in that: A second positioning groove (10) is provided on the flange (4), and the second positioning edge (9) is positioned and inserted into the second positioning groove (10).

8. The maintenance-free small hub shaft end structure according to claim 1, characterized in that: The flange (4) covers the outer side of the end of the axle (1).

9. The maintenance-free small hub shaft end structure according to claim 1, characterized in that: The flange (4) is provided with a plurality of annularly distributed first fixing holes (11), the brake disc (3) is provided with a plurality of annularly distributed second fixing holes (12), and the wheel hub (2) is provided with a plurality of annularly distributed third fixing holes (13). The fasteners (14) pass through the first fixing holes (11) and the second fixing holes (12) in sequence and are fastened to the third fixing holes (13) to connect the wheel hub (2), the brake disc (3) and the flange (4).

10. The maintenance-free small hub shaft end structure according to claim 9, characterized in that: An anti-loosening flange surface (15) is provided on the fastener (14), and the anti-loosening flange surface (15) and the fastener (14) are integrally forged.

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